Blueback, based on Tim Winton’s 1997 novel of the same name, she didn’t realise how much the part would influence her in real life. Mitchell, who stars alongside Eric Bana and Mia Wasikowska in the movie about a girl who befriends a wild blue groper while diving, sat down with WHO from her home in the US to discuss all things under the sea and overcoming her fears. Watch Below: Blueback Official Trailer 2023How much time were you in the water when shooting? Rob [Connolly] rang me and said, “Do you want to be in the film?” But I’m afraid of deep water. Some of the training was in a diving pool, then in the ocean.